Arithmetic & Basics
Basic

Percent Decrease

Value after a percentage decrease.

Formula

new=old(1p)new = old(1 - p)

Variables

oldOriginal
pPercent (decimal)

Example

$50 down 20% = $40

Did You Know?

Discounts never stack the way shoppers expect: 20% off then another 20% off is a 36% cut, not 40%.